Cetrimonium bromide

Cetyltrimethylammonium bromide (cetrimonium bromide, CTAB) [57-09-0] M 364.5, m 227-235"(dec). Crystd from EtOH, EtOH/ benzene or from wet acetone after extracting twice with pet ether. Shaken with anhydrous diethyl ether, filtered and dissolved in a little hot MeOH. After cooling in the refrigerator, the ppte was filtered at room temperature and redissolved in MeOH. Anhydrous ether was added and, after warming to obtain a clear soln, it was cooled and crystalline material was filtered. [Dearden and Wooley J Phys Chem 91 2404 7957 Hakemi et al. J Am Chem Soc 91 120 1987.]... 

CijHjjBr 112-82-3) see Cethexonium bromide Cetrimonium bromide cetyl chloride... 

C3H< N 75-50-3) see Acetylcholine chloride Betaine hydrate Bethanechol chloride Carbachol Carnitine Cetrimonium bromide Choline chloride Choline hydroxide Decamethonium bromide Hexcarbacholine bromide Miltefosine Prolonium iodide... 

Cetane engine, 12 422 Cetane number, 18 668 of diesel fuel, 12A22-A23 Ceteareth-10, cosmetic surfactant, 7 834t Ceteareth-40, cosmetic surfactant, 7 834t Cetoleic acid, physical properties, 5 31t Cetone alpha, 24 565 CETP inhibitors, 5 144t Cetrimonium bromide (CTAB), 4 358t. 

See also Cetrimonium bromide (CTAB) Cevian, 7 639 CFC12SC1, 23 629... 

C. 50% aqueous sodium hydroxide with benzene or acetonitrile in the presence of phase-transfer catalyst (cetrimonium bromide)... 

SYNS ACETOQUAT CTAB BROMAT CEE DEE CENTIMIDE CETAB CETAROL CETAVLON CETRIMIDE CETRIMONIUM BROMIDE CETYL- MINE CETY LTRIMETHYLAMMONIUM BROMIDE N-CETYLTRIMETHYLAMMONIUM BROMIDE CIRRASODOD CTAB CYCLOTON V N-HEXA-DECYLTRIMETHYLAMMONIUM BROMIDE N-HEXADECYL-N,NNI-TRIMETHYL. MMONIUM... 

Cetrimonium bromide and cetrimide are quaternary ammonium antiseptics, trimethylammonium derivatives, with similar structures. Cetrimonium bromide is hexadecyltrimethylammonium. Cetrimide is a mixture of tetradecyltrimethylammonium (mostly), dodecyltri-methylammonium, and hexadecyltrimethylammonium. They dissociate in aqueous solution, forming a relatively large and complex cation, which is responsible for their... 

Momblano P, Pradere B, Jarrige N, Concina D, Bloom E. Metabohc acidosis induced by cetrimonium bromide. Lancet 1984 2(8410) 1045. 

Cetrimonium bromide and cetrimide Chlorhexidine Chloroxylenol Ethacridine Ethylene oxide Formaldehyde Glutaral (glutaraldehyde)... 

Synonyms cetrimide BP 1953 cetrimonium bromide cetyl-trimethylammonium bromide CTAB N,N,N-trimethyl-hexadecylammonium bromide. 

Psilocybin.psilocin Analysis Psilocybe mushrooms yBondapak C18 300x4 MeOH-O.4% phosphate buffer(pH 7.2) -cetrimonium bromide(40 60 0.15) 49... 

Phenyllithium, and 50% sodium hydroxide with a catalytic amount of TEBA chloride, or cetrimonium bromide have been used in a few instances, instead of sodium hydride, to generate the anion in alkylation reactions. A study comparing the use of lithium diisopropylamide in tetrahydrofuran/hexamethylphosphoramide, potassium hydroxide with benzene and dicyclohexyl-18-crown-6, and 50% sodium hydroxide with benzene or acetonitrile and cetrimonium bromide for alkylation concludes that the phase transfer procedure is advantageous. Triton B has sometimes been used as an alternative to aqueous hydroxide for the hydrolysis of 27 to 28, " particularly in cases where R = 2-nitrobenzyl. - - ... 

In commercial products quaternary ammonium surfactants are almost never used alone. They are often used in combination with long-chain fatty conditioners, especially cetyl and stearyl alcohols [25], which serve to boost the conditioning effects of the quats [39], The addition of cetyl alcohol to cetrimonium bromide was found to reduce combing forces by nearly 50% [25], In another study, Fukuchi et al. [40] found a significant decrease in surface friction with the combination of cetyl alcohol and behentrimonium chloride. 

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